803 lines
29 KiB
C
803 lines
29 KiB
C
/*
|
|
* Copyright (c) 2008-2023 Apple Inc. All rights reserved.
|
|
*
|
|
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
|
|
*
|
|
* This file contains Original Code and/or Modifications of Original Code
|
|
* as defined in and that are subject to the Apple Public Source License
|
|
* Version 2.0 (the 'License'). You may not use this file except in
|
|
* compliance with the License. The rights granted to you under the License
|
|
* may not be used to create, or enable the creation or redistribution of,
|
|
* unlawful or unlicensed copies of an Apple operating system, or to
|
|
* circumvent, violate, or enable the circumvention or violation of, any
|
|
* terms of an Apple operating system software license agreement.
|
|
*
|
|
* Please obtain a copy of the License at
|
|
* http://www.opensource.apple.com/apsl/ and read it before using this file.
|
|
*
|
|
* The Original Code and all software distributed under the License are
|
|
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
|
|
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
|
|
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
|
|
* Please see the License for the specific language governing rights and
|
|
* limitations under the License.
|
|
*
|
|
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the project nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1982, 1986, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)in_proto.c 8.1 (Berkeley) 6/10/93
|
|
*/
|
|
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/socketvar.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/domain.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/sysctl.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/radix.h>
|
|
#include <net/route.h>
|
|
#include <net/nat464_utils.h>
|
|
|
|
#include <netinet/in.h>
|
|
#include <netinet/in_systm.h>
|
|
#include <netinet/in_var.h>
|
|
#include <netinet/ip_encap.h>
|
|
#include <netinet/ip.h>
|
|
#include <netinet/ip_var.h>
|
|
#include <netinet/ip6.h>
|
|
#include <netinet6/ip6_var.h>
|
|
#include <netinet6/in6_var.h>
|
|
#include <netinet/icmp6.h>
|
|
|
|
#include <netinet/tcp.h>
|
|
#include <netinet/tcp_timer.h>
|
|
#include <netinet/tcp_var.h>
|
|
#include <netinet/udp.h>
|
|
#include <netinet/udp_var.h>
|
|
#include <netinet6/tcp6_var.h>
|
|
#include <netinet6/raw_ip6.h>
|
|
#include <netinet6/udp6_var.h>
|
|
#include <netinet6/nd6.h>
|
|
#include <netinet6/mld6_var.h>
|
|
|
|
#if IPSEC
|
|
#include <netinet6/ipsec.h>
|
|
#include <netinet6/ipsec6.h>
|
|
#include <netinet6/ah.h>
|
|
#include <netinet6/ah6.h>
|
|
#if IPSEC_ESP
|
|
#include <netinet6/esp.h>
|
|
#include <netinet6/esp6.h>
|
|
#endif
|
|
#endif /*IPSEC*/
|
|
|
|
#include <netinet6/ip6protosw.h>
|
|
|
|
#include <net/net_osdep.h>
|
|
#include <os/log.h>
|
|
|
|
/*
|
|
* TCP/IP protocol family: IP6, ICMP6, UDP, TCP.
|
|
*/
|
|
|
|
extern struct domain inet6domain_s;
|
|
struct domain *inet6domain = NULL;
|
|
|
|
static struct pr_usrreqs nousrreqs;
|
|
lck_mtx_t *inet6_domain_mutex;
|
|
|
|
static void in6_dinit(struct domain *);
|
|
static int rip6_pr_output(struct mbuf *, struct socket *,
|
|
struct sockaddr_in6 *, struct mbuf *);
|
|
|
|
struct ip6protosw inet6sw[] = {
|
|
{
|
|
.pr_type = 0,
|
|
.pr_protocol = IPPROTO_IPV6,
|
|
.pr_init = ip6_init,
|
|
.pr_drain = ip6_drain,
|
|
.pr_usrreqs = &nousrreqs,
|
|
},
|
|
{
|
|
.pr_type = SOCK_DGRAM,
|
|
.pr_protocol = IPPROTO_UDP,
|
|
.pr_flags = PR_ATOMIC | PR_ADDR | PR_PROTOLOCK | PR_PCBLOCK |
|
|
PR_EVCONNINFO | PR_PRECONN_WRITE,
|
|
.pr_input = udp6_input,
|
|
.pr_ctlinput = udp6_ctlinput,
|
|
.pr_ctloutput = udp_ctloutput,
|
|
#if !INET /* don't call initialization twice */
|
|
.pr_init = udp_init,
|
|
#endif /* !INET */
|
|
.pr_usrreqs = &udp6_usrreqs,
|
|
.pr_lock = udp_lock,
|
|
.pr_unlock = udp_unlock,
|
|
.pr_getlock = udp_getlock,
|
|
.pr_update_last_owner = inp_update_last_owner,
|
|
.pr_copy_last_owner = inp_copy_last_owner,
|
|
},
|
|
{
|
|
.pr_type = SOCK_STREAM,
|
|
.pr_protocol = IPPROTO_TCP,
|
|
.pr_flags = PR_CONNREQUIRED | PR_WANTRCVD | PR_PCBLOCK |
|
|
PR_PROTOLOCK | PR_DISPOSE | PR_EVCONNINFO |
|
|
PR_PRECONN_WRITE | PR_DATA_IDEMPOTENT,
|
|
.pr_input = tcp6_input,
|
|
.pr_ctlinput = tcp6_ctlinput,
|
|
.pr_ctloutput = tcp_ctloutput,
|
|
#if !INET /* don't call initialization and timeout routines twice */
|
|
.pr_init = tcp_init,
|
|
#endif /* !INET */
|
|
.pr_drain = tcp_drain,
|
|
.pr_usrreqs = &tcp6_usrreqs,
|
|
.pr_lock = tcp_lock,
|
|
.pr_unlock = tcp_unlock,
|
|
.pr_getlock = tcp_getlock,
|
|
.pr_update_last_owner = inp_update_last_owner,
|
|
.pr_copy_last_owner = inp_copy_last_owner,
|
|
},
|
|
{
|
|
.pr_type = SOCK_RAW,
|
|
.pr_protocol = IPPROTO_RAW,
|
|
.pr_flags = PR_ATOMIC | PR_ADDR,
|
|
.pr_input = rip6_input,
|
|
.pr_output = rip6_pr_output,
|
|
.pr_ctlinput = rip6_ctlinput,
|
|
.pr_ctloutput = rip6_ctloutput,
|
|
#if !INET /* don't call initialization and timeout routines twice */
|
|
.pr_init = rip_init,
|
|
#endif /* !INET */
|
|
.pr_usrreqs = &rip6_usrreqs,
|
|
.pr_unlock = rip_unlock,
|
|
.pr_update_last_owner = inp_update_last_owner,
|
|
.pr_copy_last_owner = inp_copy_last_owner,
|
|
},
|
|
{
|
|
.pr_type = SOCK_RAW,
|
|
.pr_protocol = IPPROTO_ICMPV6,
|
|
.pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR,
|
|
.pr_input = icmp6_input,
|
|
.pr_output = rip6_pr_output,
|
|
.pr_ctlinput = rip6_ctlinput,
|
|
.pr_ctloutput = rip6_ctloutput,
|
|
.pr_init = icmp6_init,
|
|
.pr_usrreqs = &rip6_usrreqs,
|
|
.pr_unlock = rip_unlock,
|
|
.pr_update_last_owner = inp_update_last_owner,
|
|
.pr_copy_last_owner = inp_copy_last_owner,
|
|
},
|
|
{
|
|
.pr_type = SOCK_DGRAM,
|
|
.pr_protocol = IPPROTO_ICMPV6,
|
|
.pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR,
|
|
.pr_input = icmp6_input,
|
|
.pr_output = rip6_pr_output,
|
|
.pr_ctlinput = rip6_ctlinput,
|
|
.pr_ctloutput = icmp6_dgram_ctloutput,
|
|
.pr_init = icmp6_init,
|
|
.pr_usrreqs = &icmp6_dgram_usrreqs,
|
|
.pr_unlock = rip_unlock,
|
|
.pr_update_last_owner = inp_update_last_owner,
|
|
.pr_copy_last_owner = inp_copy_last_owner,
|
|
},
|
|
{
|
|
.pr_type = SOCK_RAW,
|
|
.pr_protocol = IPPROTO_DSTOPTS,
|
|
.pr_flags = PR_ATOMIC | PR_ADDR,
|
|
.pr_input = dest6_input,
|
|
.pr_usrreqs = &nousrreqs,
|
|
},
|
|
{
|
|
.pr_type = SOCK_RAW,
|
|
.pr_protocol = IPPROTO_ROUTING,
|
|
.pr_flags = PR_ATOMIC | PR_ADDR,
|
|
.pr_input = route6_input,
|
|
.pr_usrreqs = &nousrreqs,
|
|
},
|
|
{
|
|
.pr_type = SOCK_RAW,
|
|
.pr_protocol = IPPROTO_FRAGMENT,
|
|
.pr_flags = PR_ATOMIC | PR_ADDR | PR_PROTOLOCK,
|
|
.pr_input = frag6_input,
|
|
.pr_usrreqs = &nousrreqs,
|
|
},
|
|
#if IPSEC
|
|
{
|
|
.pr_type = SOCK_RAW,
|
|
.pr_protocol = IPPROTO_AH,
|
|
.pr_flags = PR_ATOMIC | PR_ADDR | PR_PROTOLOCK,
|
|
.pr_input = ah6_input,
|
|
.pr_usrreqs = &nousrreqs,
|
|
},
|
|
#if IPSEC_ESP
|
|
{
|
|
.pr_type = SOCK_RAW,
|
|
.pr_protocol = IPPROTO_ESP,
|
|
.pr_flags = PR_ATOMIC | PR_ADDR | PR_PROTOLOCK,
|
|
.pr_input = esp6_input,
|
|
.pr_ctlinput = esp6_ctlinput,
|
|
.pr_usrreqs = &nousrreqs,
|
|
},
|
|
#endif /* IPSEC_ESP */
|
|
#endif /* IPSEC */
|
|
#if INET
|
|
{
|
|
.pr_type = SOCK_RAW,
|
|
.pr_protocol = IPPROTO_IPV4,
|
|
.pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR,
|
|
.pr_input = encap6_input,
|
|
.pr_output = rip6_pr_output,
|
|
.pr_ctloutput = rip6_ctloutput,
|
|
.pr_usrreqs = &rip6_usrreqs,
|
|
.pr_unlock = rip_unlock,
|
|
.pr_update_last_owner = inp_update_last_owner,
|
|
.pr_copy_last_owner = inp_copy_last_owner,
|
|
},
|
|
#endif /*INET*/
|
|
{
|
|
.pr_type = SOCK_RAW,
|
|
.pr_protocol = IPPROTO_IPV6,
|
|
.pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR,
|
|
.pr_input = encap6_input,
|
|
.pr_output = rip6_pr_output,
|
|
.pr_ctloutput = rip6_ctloutput,
|
|
.pr_usrreqs = &rip6_usrreqs,
|
|
.pr_unlock = rip_unlock,
|
|
.pr_update_last_owner = inp_update_last_owner,
|
|
.pr_copy_last_owner = inp_copy_last_owner,
|
|
},
|
|
/* raw wildcard */
|
|
{
|
|
.pr_type = SOCK_RAW,
|
|
.pr_protocol = 0,
|
|
.pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR,
|
|
.pr_input = rip6_input,
|
|
.pr_output = rip6_pr_output,
|
|
.pr_ctloutput = rip6_ctloutput,
|
|
.pr_usrreqs = &rip6_usrreqs,
|
|
.pr_unlock = rip_unlock,
|
|
.pr_update_last_owner = inp_update_last_owner,
|
|
.pr_copy_last_owner = inp_copy_last_owner,
|
|
},
|
|
};
|
|
|
|
int in6_proto_count = (sizeof(inet6sw) / sizeof(struct ip6protosw));
|
|
|
|
struct domain inet6domain_s = {
|
|
.dom_family = PF_INET6,
|
|
.dom_flags = DOM_REENTRANT,
|
|
.dom_name = "internet6",
|
|
.dom_init = in6_dinit,
|
|
.dom_rtattach = in6_inithead,
|
|
.dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3,
|
|
.dom_maxrtkey = sizeof(struct sockaddr_in6),
|
|
.dom_protohdrlen = sizeof(struct sockaddr_in6),
|
|
};
|
|
|
|
/* Initialize the PF_INET6 domain, and add in the pre-defined protos */
|
|
void
|
|
in6_dinit(struct domain *dp)
|
|
{
|
|
struct ip6protosw *pr;
|
|
int i;
|
|
|
|
VERIFY(!(dp->dom_flags & DOM_INITIALIZED));
|
|
VERIFY(inet6domain == NULL);
|
|
|
|
inet6domain = dp;
|
|
|
|
_CASSERT(sizeof(struct protosw) == sizeof(struct ip6protosw));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_entry) ==
|
|
offsetof(struct protosw, pr_entry));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_domain) ==
|
|
offsetof(struct protosw, pr_domain));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_protosw) ==
|
|
offsetof(struct protosw, pr_protosw));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_type) ==
|
|
offsetof(struct protosw, pr_type));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_protocol) ==
|
|
offsetof(struct protosw, pr_protocol));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_flags) ==
|
|
offsetof(struct protosw, pr_flags));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_input) ==
|
|
offsetof(struct protosw, pr_input));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_output) ==
|
|
offsetof(struct protosw, pr_output));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_ctlinput) ==
|
|
offsetof(struct protosw, pr_ctlinput));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_ctloutput) ==
|
|
offsetof(struct protosw, pr_ctloutput));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_usrreqs) ==
|
|
offsetof(struct protosw, pr_usrreqs));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_init) ==
|
|
offsetof(struct protosw, pr_init));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_drain) ==
|
|
offsetof(struct protosw, pr_drain));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_sysctl) ==
|
|
offsetof(struct protosw, pr_sysctl));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_lock) ==
|
|
offsetof(struct protosw, pr_lock));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_unlock) ==
|
|
offsetof(struct protosw, pr_unlock));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_getlock) ==
|
|
offsetof(struct protosw, pr_getlock));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_filter_head) ==
|
|
offsetof(struct protosw, pr_filter_head));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_old) ==
|
|
offsetof(struct protosw, pr_old));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_update_last_owner) ==
|
|
offsetof(struct protosw, pr_update_last_owner));
|
|
_CASSERT(offsetof(struct ip6protosw, pr_copy_last_owner) ==
|
|
offsetof(struct protosw, pr_copy_last_owner));
|
|
|
|
/*
|
|
* Attach first, then initialize. ip6_init() needs raw IP6 handler.
|
|
*/
|
|
for (i = 0, pr = &inet6sw[0]; i < in6_proto_count; i++, pr++) {
|
|
net_add_proto((struct protosw *)pr, dp, 0);
|
|
}
|
|
for (i = 0, pr = &inet6sw[0]; i < in6_proto_count; i++, pr++) {
|
|
net_init_proto((struct protosw *)pr, dp);
|
|
}
|
|
|
|
inet6_domain_mutex = dp->dom_mtx;
|
|
}
|
|
|
|
static int
|
|
rip6_pr_output(struct mbuf *m, struct socket *so, struct sockaddr_in6 *sin6,
|
|
struct mbuf *m1)
|
|
{
|
|
#pragma unused(m, so, sin6, m1)
|
|
panic("%s", __func__);
|
|
/* NOTREACHED */
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Internet configuration info
|
|
*/
|
|
#ifndef IPV6FORWARDING
|
|
#if GATEWAY6
|
|
#define IPV6FORWARDING 1 /* forward IP6 packets not for us */
|
|
#else
|
|
#define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */
|
|
#endif /* GATEWAY6 */
|
|
#endif /* !IPV6FORWARDING */
|
|
|
|
#ifndef IPV6_SENDREDIRECTS
|
|
#define IPV6_SENDREDIRECTS 1
|
|
#endif
|
|
|
|
int ip6_forwarding = IPV6FORWARDING; /* act as router? */
|
|
int ip6_sendredirects = IPV6_SENDREDIRECTS;
|
|
int ip6_defhlim = IPV6_DEFHLIM;
|
|
int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS;
|
|
int ip6_accept_rtadv = 1; /* deprecated */
|
|
int ip6_log_interval = 5;
|
|
int ip6_hdrnestlimit = 15; /* How many header options will we process? */
|
|
int ip6_dad_count = 1; /* DupAddrDetectionTransmits */
|
|
int ip6_auto_flowlabel = 1;
|
|
int ip6_gif_hlim = 0;
|
|
int ip6_use_deprecated = 1; /* allow deprecated addr [RFC 4862, 5.5.4] */
|
|
int ip6_rr_prune = 5; /* router renumbering prefix
|
|
* walk list every 5 sec. */
|
|
int ip6_mcast_pmtu = 0; /* enable pMTU discovery for multicast? */
|
|
int ip6_v6only = 0; /* Mapped addresses off by default - Radar 3347718 -- REVISITING FOR 10.7 -- TESTING WITH MAPPED@ OFF */
|
|
|
|
int ip6_neighborgcthresh = 1024; /* Threshold # of NDP entries for GC */
|
|
int ip6_maxifprefixes = 16; /* Max acceptable prefixes via RA per IF */
|
|
int ip6_maxifdefrouters = 64; /* Max acceptable default or RTI routers via RA */
|
|
int ip6_maxdynroutes = 1024; /* Max # of routes created via redirect */
|
|
int ip6_only_allow_rfc4193_prefix = 0; /* Only allow RFC4193 style Unique Local IPv6 Unicast prefixes */
|
|
|
|
static int ip6_keepfaith = 0;
|
|
uint64_t ip6_log_time = 0;
|
|
int nd6_onlink_ns_rfc4861 = 0; /* allow 'on-link' nd6 NS (as in RFC 4861) */
|
|
|
|
/* icmp6 */
|
|
/*
|
|
* BSDI4 defines these variables in in_proto.c...
|
|
* XXX: what if we don't define INET? Should we define pmtu6_expire
|
|
* or so? (jinmei@kame.net 19990310)
|
|
*/
|
|
int pmtu_expire = 60 * 10;
|
|
int pmtu_probe = 60 * 2;
|
|
|
|
/* raw IP6 parameters */
|
|
/*
|
|
* Nominal space allocated to a raw ip socket.
|
|
*/
|
|
#define RIPV6SNDQ 8192
|
|
#define RIPV6RCVQ 8192
|
|
|
|
u_int32_t rip6_sendspace = RIPV6SNDQ;
|
|
u_int32_t rip6_recvspace = RIPV6RCVQ;
|
|
|
|
/* ICMPV6 parameters */
|
|
int icmp6_rediraccept = 1; /* accept and process redirects */
|
|
int icmp6_redirtimeout = 10 * 60; /* 10 minutes */
|
|
uint32_t icmp6errppslim = 500; /* 500 packets per second */
|
|
uint32_t icmp6errppslim_random_incr = 500; /* We further randomize icmp6errppslim
|
|
* with this during icmpv6 initialization*/
|
|
int icmp6rappslim = 10; /* 10 packets per second */
|
|
int icmp6_nodeinfo = 0; /* enable/disable NI response */
|
|
|
|
/* UDP on IP6 parameters */
|
|
int udp6_sendspace = 9216; /* really max datagram size */
|
|
int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6));
|
|
/* 40 1K datagrams */
|
|
|
|
/*
|
|
* sysctl related items.
|
|
*/
|
|
SYSCTL_NODE(_net, PF_INET6, inet6,
|
|
CTLFLAG_RW | CTLFLAG_LOCKED, 0, "Internet6 Family");
|
|
|
|
/* net.inet6 */
|
|
SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6,
|
|
CTLFLAG_RW | CTLFLAG_LOCKED, 0, "IP6");
|
|
SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6,
|
|
CTLFLAG_RW | CTLFLAG_LOCKED, 0, "ICMP6");
|
|
SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6,
|
|
CTLFLAG_RW | CTLFLAG_LOCKED, 0, "UDP6");
|
|
SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6,
|
|
CTLFLAG_RW | CTLFLAG_LOCKED, 0, "TCP6");
|
|
#if IPSEC
|
|
SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6,
|
|
CTLFLAG_RW | CTLFLAG_LOCKED, 0, "IPSEC6");
|
|
#endif /* IPSEC */
|
|
|
|
/* net.inet6.ip6 */
|
|
static int
|
|
sysctl_ip6_temppltime SYSCTL_HANDLER_ARGS
|
|
{
|
|
#pragma unused(oidp, arg2)
|
|
int error = 0;
|
|
int value = 0;
|
|
|
|
error = SYSCTL_OUT(req, arg1, sizeof(int));
|
|
if (error || !req->newptr) {
|
|
return error;
|
|
}
|
|
|
|
error = SYSCTL_IN(req, &value, sizeof(value));
|
|
if (error) {
|
|
return error;
|
|
}
|
|
|
|
if (value > ND6_MAX_LIFETIME ||
|
|
value < ip6_desync_factor + ip6_temp_regen_advance) {
|
|
return EINVAL;
|
|
}
|
|
|
|
ip6_temp_preferred_lifetime = value;
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
sysctl_ip6_tempvltime SYSCTL_HANDLER_ARGS
|
|
{
|
|
#pragma unused(oidp, arg2)
|
|
int error = 0;
|
|
uint32_t value = 0;
|
|
|
|
error = SYSCTL_OUT(req, arg1, sizeof(uint32_t));
|
|
if (error || !req->newptr) {
|
|
return error;
|
|
}
|
|
|
|
error = SYSCTL_IN(req, &value, sizeof(value));
|
|
if (error) {
|
|
return error;
|
|
}
|
|
|
|
if (value > ND6_MAX_LIFETIME ||
|
|
value < ip6_temp_preferred_lifetime) {
|
|
return EINVAL;
|
|
}
|
|
|
|
ip6_temp_valid_lifetime = value;
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
sysctl_ip6_cga_conflict_retries SYSCTL_HANDLER_ARGS
|
|
{
|
|
#pragma unused(oidp, arg2)
|
|
int error = 0;
|
|
int value = 0;
|
|
|
|
error = SYSCTL_OUT(req, arg1, sizeof(int));
|
|
if (error || !req->newptr) {
|
|
return error;
|
|
}
|
|
|
|
error = SYSCTL_IN(req, &value, sizeof(value));
|
|
if (error) {
|
|
return error;
|
|
}
|
|
if (value > IPV6_CGA_CONFLICT_RETRIES_MAX || value < 0) {
|
|
return EINVAL;
|
|
}
|
|
|
|
ip6_cga_conflict_retries = value;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ip6_getstat SYSCTL_HANDLER_ARGS
|
|
{
|
|
#pragma unused(oidp, arg1, arg2)
|
|
if (req->oldptr == USER_ADDR_NULL) {
|
|
req->oldlen = (size_t)sizeof(struct ip6stat);
|
|
}
|
|
|
|
return SYSCTL_OUT(req, &ip6stat, MIN(sizeof(ip6stat), req->oldlen));
|
|
}
|
|
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS,
|
|
redirect, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_sendredirects, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM,
|
|
hlim, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_defhlim, 0, "");
|
|
SYSCTL_PROC(_net_inet6_ip6, IPV6CTL_STATS, stats,
|
|
CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED,
|
|
0, 0, ip6_getstat, "S,ip6stat", "");
|
|
|
|
#if (DEVELOPMENT || DEBUG)
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV,
|
|
accept_rtadv, CTLFLAG_RW | CTLFLAG_LOCKED,
|
|
&ip6_accept_rtadv, 0, "");
|
|
#else
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV,
|
|
accept_rtadv, CTLFLAG_RD | CTLFLAG_LOCKED,
|
|
&ip6_accept_rtadv, 0, "");
|
|
#endif /* (DEVELOPMENT || DEBUG) */
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH,
|
|
keepfaith, CTLFLAG_RD | CTLFLAG_LOCKED, &ip6_keepfaith, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL,
|
|
log_interval, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_log_interval, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT,
|
|
hdrnestlimit, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_hdrnestlimit, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT,
|
|
dad_count, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_dad_count, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL,
|
|
auto_flowlabel, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_auto_flowlabel, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM,
|
|
defmcasthlim, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_defmcasthlim, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM,
|
|
gifhlim, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_gif_hlim, 0, "");
|
|
SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION,
|
|
kame_version, CTLFLAG_RD | CTLFLAG_LOCKED, (void *)((uintptr_t)(__KAME_VERSION)), 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED,
|
|
use_deprecated, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_use_deprecated, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE,
|
|
rr_prune, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_rr_prune, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR,
|
|
use_tempaddr, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_use_tempaddr, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ULA_USETEMPADDR,
|
|
ula_use_tempaddr, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_ula_use_tempaddr, 0, "");
|
|
SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime,
|
|
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_temp_preferred_lifetime, 0,
|
|
sysctl_ip6_temppltime, "I", "");
|
|
SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime,
|
|
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_temp_valid_lifetime, 0,
|
|
sysctl_ip6_tempvltime, "I", "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY,
|
|
v6only, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_v6only, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL,
|
|
auto_linklocal, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_auto_linklocal, 0, "");
|
|
SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD | CTLFLAG_LOCKED,
|
|
&rip6stat, rip6stat, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR,
|
|
prefer_tempaddr, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_prefer_tempaddr, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE,
|
|
use_defaultzone, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_use_defzone, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU,
|
|
mcast_pmtu, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_mcast_pmtu, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_NEIGHBORGCTHRESH,
|
|
neighborgcthresh, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_neighborgcthresh, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXIFPREFIXES,
|
|
maxifprefixes, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_maxifprefixes, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXIFDEFROUTERS,
|
|
maxifdefrouters, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_maxifdefrouters, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXDYNROUTES,
|
|
maxdynroutes, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_maxdynroutes, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, OID_AUTO,
|
|
only_allow_rfc4193_prefixes, CTLFLAG_RW | CTLFLAG_LOCKED,
|
|
&ip6_only_allow_rfc4193_prefix, 0, "");
|
|
SYSCTL_INT(_net_inet6_ip6, OID_AUTO,
|
|
clat_debug, CTLFLAG_RW | CTLFLAG_LOCKED, &clat_debug, 0, "");
|
|
|
|
SYSCTL_PROC(_net_inet6_ip6, OID_AUTO,
|
|
cga_conflict_retries, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
|
|
&ip6_cga_conflict_retries, 0, sysctl_ip6_cga_conflict_retries, "IU", "");
|
|
|
|
|
|
static int sysctl_ip6_forwarding SYSCTL_HANDLER_ARGS;
|
|
|
|
SYSCTL_PROC(_net_inet6_ip6, IPV6CTL_FORWARDING, forwarding,
|
|
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_forwarding, 0,
|
|
sysctl_ip6_forwarding, "I", "");
|
|
|
|
static int
|
|
sysctl_ip6_forwarding SYSCTL_HANDLER_ARGS
|
|
{
|
|
#pragma unused(arg1, arg2)
|
|
int error, i;
|
|
char proc_name_string[MAXCOMLEN + 1];
|
|
proc_name(proc_pid(current_proc()), proc_name_string, sizeof(proc_name_string));
|
|
|
|
i = ip6_forwarding;
|
|
os_log(OS_LOG_DEFAULT, "%s:%s entry: ip6_forwarding is %d",
|
|
proc_name_string, __func__, ip6_forwarding);
|
|
|
|
error = sysctl_handle_int(oidp, &i, 0, req);
|
|
if (error || req->newptr == USER_ADDR_NULL) {
|
|
goto done;
|
|
}
|
|
/* impose bounds */
|
|
if (i < 0) {
|
|
error = EINVAL;
|
|
goto done;
|
|
}
|
|
|
|
if (i > 0) {
|
|
i = 1;
|
|
}
|
|
|
|
ip6_forwarding = i;
|
|
done:
|
|
os_log(OS_LOG_DEFAULT, "%s:%s return: ip6_forwarding is %d "
|
|
"and error is %d", proc_name_string, __func__, ip6_forwarding, error);
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* One single sysctl to set v6 stack profile for IPv6 compliance testing.
|
|
* A lot of compliance test suites are not aware of other enhancements in IPv6
|
|
* protocol and expect some arguably obsolete behavior.
|
|
*/
|
|
static int v6_compliance_profile;
|
|
static int
|
|
sysctl_set_v6_compliance_profile SYSCTL_HANDLER_ARGS
|
|
{
|
|
#pragma unused(oidp, arg2)
|
|
int changed, error;
|
|
int value = *(int *) arg1;
|
|
|
|
error = sysctl_io_number(req, value, sizeof(value), &value, &changed);
|
|
if (error || !changed) {
|
|
return error;
|
|
}
|
|
|
|
if (value != 0 && value != 1) {
|
|
return ERANGE;
|
|
}
|
|
|
|
if (value == 1) {
|
|
ip6_use_tempaddr = 0;
|
|
dad_enhanced = 0;
|
|
icmp6_rediraccept = 1;
|
|
nd6_optimistic_dad = 0;
|
|
nd6_process_rti = ND6_PROCESS_RTI_ENABLE;
|
|
} else {
|
|
ip6_use_tempaddr = IP6_USE_TMPADDR_DEFAULT;
|
|
dad_enhanced = ND6_DAD_ENHANCED_DEFAULT;
|
|
icmp6_rediraccept = ICMP6_REDIRACCEPT_DEFAULT;
|
|
nd6_optimistic_dad = ND6_OPTIMISTIC_DAD_DEFAULT;
|
|
nd6_process_rti = ND6_PROCESS_RTI_DEFAULT;
|
|
}
|
|
|
|
v6_compliance_profile = value;
|
|
return 0;
|
|
}
|
|
|
|
SYSCTL_PROC(_net_inet6_ip6, OID_AUTO, compliance_profile,
|
|
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
|
|
&v6_compliance_profile, 0, sysctl_set_v6_compliance_profile,
|
|
"I", "set IPv6 compliance profile");
|
|
|
|
/* net.inet6.icmp6 */
|
|
SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT,
|
|
rediraccept, CTLFLAG_RW | CTLFLAG_LOCKED, &icmp6_rediraccept, 0, "");
|
|
SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT,
|
|
redirtimeout, CTLFLAG_RW | CTLFLAG_LOCKED, &icmp6_redirtimeout, 0, "");
|
|
SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD | CTLFLAG_LOCKED,
|
|
&icmp6stat, icmp6stat, "");
|
|
SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE,
|
|
nd6_prune, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_prune, 0, "");
|
|
SYSCTL_INT(_net_inet6_icmp6, OID_AUTO,
|
|
nd6_prune_lazy, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_prune_lazy, 0, "");
|
|
SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY,
|
|
nd6_delay, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_delay, 0, "");
|
|
SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES,
|
|
nd6_umaxtries, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_umaxtries, 0, "");
|
|
SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES,
|
|
nd6_mmaxtries, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_mmaxtries, 0, "");
|
|
SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK,
|
|
nd6_useloopback, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_useloopback, 0, "");
|
|
SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_ACCEPT_6TO4,
|
|
nd6_accept_6to4, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_accept_6to4, 0, "");
|
|
SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO,
|
|
nodeinfo, CTLFLAG_RW | CTLFLAG_LOCKED, &icmp6_nodeinfo, 0, "");
|
|
SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT,
|
|
errppslimit, CTLFLAG_RW | CTLFLAG_LOCKED, &icmp6errppslim, 0, "");
|
|
SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT_RANDOM_INCR,
|
|
errppslimit_random_incr, CTLFLAG_RW | CTLFLAG_LOCKED, &icmp6errppslim_random_incr, 0, "");
|
|
SYSCTL_INT(_net_inet6_icmp6, OID_AUTO,
|
|
rappslimit, CTLFLAG_RW | CTLFLAG_LOCKED, &icmp6rappslim, 0, "");
|
|
SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG,
|
|
nd6_debug, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_debug, 0, "");
|
|
SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_ONLINKNSRFC4861,
|
|
nd6_onlink_ns_rfc4861, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_onlink_ns_rfc4861, 0,
|
|
"Accept 'on-link' nd6 NS in compliance with RFC 4861.");
|
|
SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_OPTIMISTIC_DAD,
|
|
nd6_optimistic_dad, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_optimistic_dad, 0, "");
|